Huygens principle, Physics

Assignment Help:

Huygen's principle : Huygen's principle states that every point of a wave front behaves as the source of small secondary wavelets which spread out in all directions with a velocity equal to the velocity of light. The new wave front is then found by constructing a surface tangential to the secondary wavelets.

 

299_Huygens principle.png

Consider a point source of light ‘S'. It sends out spherical wave fronts around it. Let AB represents a spherical wave front at any instant. According to Huygens principle each point on this AB acts as a source of light called secondary source. 

The light emerges from these secondary sources again as small spheres called wave lets. The radius of these spheres is given by Ct. where ‘C' is the velocity of light. A surface tangential to all these wave lets gives an envelope CD. This CD gives the new position of the wavefront AB after a time interval ‘t'. This process of construction of new wavefronts at different positions can be continued. Thus light advances in a direction perpendicular to the wavefront. This method of construction of wavefronts is the essence of Huygen's principle (hypothesis)

 


Related Discussions:- Huygens principle

Classification of dielectric, There are thousands of insulating materials a...

There are thousands of insulating materials available in the market. Insulations technology is one of the few branches where the number of materials is very large. Any special requ

Describe magnetic resonance angiography, Question 1. Discuss the concep...

Question 1. Discuss the concept of longitudinal and transverse relation. 2. What is k-space? Write a note on k-space trajectories. 3. Name the 3 components of MRI system.

What is the wavelength of the emitted photon, In the Compton effect, a phot...

In the Compton effect, a photon of wavelength l collides with a stationary electron.  The wavelength of the emitted photon is: a)  longer than l b)  shorter than l c)

How x-rays are produced, Question 1. How X-rays are produced? Describe ...

Question 1. How X-rays are produced? Describe the properties of X-Rays? 2. Describe the half wave & full wave Rectifications employed in an X-ray tube? 3. Discuss the med

Vectors, if A=[30.1, 21.4 degrees] and B= [25, 40 degrees] what is the magn...

if A=[30.1, 21.4 degrees] and B= [25, 40 degrees] what is the magnitude of the sum of these two vectors

Drake equation, Drake equation (F. Drake; 1961) A technique of estimat...

Drake equation (F. Drake; 1961) A technique of estimating the number of intelligent, technological species (that means, able to communicate along with other species) in existe

Draw the graph showing the variation of binding energy, Draw the graph show...

Draw the graph showing the variation of binding energy per nucleon with mass number. Give the reason for the decline of binding energy per nucleon for nuclei with high mass numbers

Explain instantaneous acceleration, INSTANTANEOUS ACCELERATION: The acc...

INSTANTANEOUS ACCELERATION: The acceleration of the body at any certain instant during its motion is called to be an instantaneous acceleration.

Special resistor materials: tungsten, Tungsten: Atomic numb...

Tungsten: Atomic number 74 Symbol W Atomic weight 183.85 Discovery Purified Tungste

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd